git.oblomov.eu Git - wine/blob - dlls/ddraw/dsurface/dib.c

   1 /*              DIBSection DirectDrawSurface driver
   2  *
   3  * Copyright 1997-2000 Marcus Meissner
   4  * Copyright 1998-2000 Lionel Ulmer
   5  * Copyright 2000-2001 TransGaming Technologies Inc.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include <assert.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #define NONAMELESSUNION
  29 #define NONAMELESSSTRUCT
  30 #include "winerror.h"
  31 #include "wine/debug.h"
  32 #include "ddraw_private.h"
  33 #include "d3d_private.h"
  34 #include "dsurface/main.h"
  35 #include "dsurface/dib.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  38
  39 /* FIXME */
  40 extern HBITMAP DIB_CreateDIBSection( HDC hdc, const BITMAPINFO *bmi, UINT usage, VOID **bits,
  41                                      HANDLE section, DWORD offset, DWORD ovr_pitch );
  42
  43 static IDirectDrawSurface7Vtbl DIB_IDirectDrawSurface7_VTable;
  44
  45 /* Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned. */
  46 inline static int get_dib_width_bytes( int width, int depth )
  47 {
  48     int words;
  49
  50     switch(depth)
  51     {
  52     case 1:  words = (width + 31) / 32; break;
  53     case 4:  words = (width + 7) / 8; break;
  54     case 8:  words = (width + 3) / 4; break;
  55     case 15:
  56     case 16: words = (width + 1) / 2; break;
  57     case 24: words = (width * 3 + 3)/4; break;
  58     default:
  59         WARN("(%d): Unsupported depth\n", depth );
  60         /* fall through */
  61     case 32: words = width; break;
  62     }
  63     return 4 * words;
  64 }
  65
  66
  67 static HRESULT create_dib(IDirectDrawSurfaceImpl* This)
  68 {
  69     BITMAPINFO* b_info;
  70     UINT usage;
  71     HDC ddc;
  72     DIB_DirectDrawSurfaceImpl* priv = This->private;
  73
  74     assert(This->surface_desc.lpSurface != NULL);
  75
  76     switch (This->surface_desc.u4.ddpfPixelFormat.u1.dwRGBBitCount)
  77     {
  78     case 16:
  79     case 32:
  80         /* Allocate extra space to store the RGB bit masks. */
  81         b_info = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
  82                            sizeof(BITMAPINFOHEADER) + 3 * sizeof(DWORD));
  83         break;
  84
  85     case 24:
  86         b_info = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
  87                            sizeof(BITMAPINFOHEADER));
  88         break;
  89
  90     default:
  91         /* Allocate extra space for a palette. */
  92         b_info = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
  93                            sizeof(BITMAPINFOHEADER)
  94                            + sizeof(RGBQUAD)
  95                            * (1 << This->surface_desc.u4.ddpfPixelFormat.u1.dwRGBBitCount));
  96         break;
  97     }
  98
  99     b_info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
 100     b_info->bmiHeader.biWidth = This->surface_desc.dwWidth;
 101     b_info->bmiHeader.biHeight = -This->surface_desc.dwHeight;
 102     b_info->bmiHeader.biPlanes = 1;
 103     b_info->bmiHeader.biBitCount = This->surface_desc.u4.ddpfPixelFormat.u1.dwRGBBitCount;
 104
 105     if ((This->surface_desc.u4.ddpfPixelFormat.u1.dwRGBBitCount != 16)
 106         && (This->surface_desc.u4.ddpfPixelFormat.u1.dwRGBBitCount != 32))
 107         b_info->bmiHeader.biCompression = BI_RGB;
 108     else
 109         b_info->bmiHeader.biCompression = BI_BITFIELDS;
 110
 111     b_info->bmiHeader.biSizeImage
 112         = (This->surface_desc.u4.ddpfPixelFormat.u1.dwRGBBitCount / 8)
 113         * This->surface_desc.dwWidth * This->surface_desc.dwHeight;
 114
 115     b_info->bmiHeader.biXPelsPerMeter = 0;
 116     b_info->bmiHeader.biYPelsPerMeter = 0;
 117     b_info->bmiHeader.biClrUsed = 0;
 118     b_info->bmiHeader.biClrImportant = 0;
 119
 120     if (!This->surface_desc.u1.lPitch) {
 121         /* This can't happen, right? */
 122         /* or use GDI_GetObj to get it from the created DIB? */
 123         This->surface_desc.u1.lPitch = get_dib_width_bytes(b_info->bmiHeader.biWidth, b_info->bmiHeader.biBitCount);
 124         This->surface_desc.dwFlags |= DDSD_PITCH;
 125     }
 126
 127     switch (This->surface_desc.u4.ddpfPixelFormat.u1.dwRGBBitCount)
 128     {
 129     case 16:
 130     case 32:
 131     {
 132         DWORD *masks = (DWORD *) &(b_info->bmiColors);
 133
 134         usage = 0;
 135         masks[0] = This->surface_desc.u4.ddpfPixelFormat.u2.dwRBitMask;
 136         masks[1] = This->surface_desc.u4.ddpfPixelFormat.u3.dwGBitMask;
 137         masks[2] = This->surface_desc.u4.ddpfPixelFormat.u4.dwBBitMask;
 138     }
 139     break;
 140
 141     case 24:
 142         /* Nothing to do */
 143         usage = DIB_RGB_COLORS;
 144         break;
 145
 146     default:
 147         /* Don't know palette */
 148         usage = 0;
 149         break;
 150     }
 151
 152     ddc = CreateDCA("DISPLAY", NULL, NULL, NULL);
 153     if (ddc == 0)
 154     {
 155         HeapFree(GetProcessHeap(), 0, b_info);
 156         return HRESULT_FROM_WIN32(GetLastError());
 157     }
 158
 159     priv->dib.DIBsection
 160         = DIB_CreateDIBSection(ddc, b_info, usage, &(priv->dib.bitmap_data), 0,
 161                                (DWORD)This->surface_desc.lpSurface,
 162                                This->surface_desc.u1.lPitch);
 163     DeleteDC(ddc);
 164     if (!priv->dib.DIBsection) {
 165         ERR("CreateDIBSection failed!\n");
 166         HeapFree(GetProcessHeap(), 0, b_info);
 167         return HRESULT_FROM_WIN32(GetLastError());
 168     }
 169
 170     TRACE("DIBSection at : %p\n", priv->dib.bitmap_data);
 171
 172     if (!This->surface_desc.lpSurface) {
 173         This->surface_desc.lpSurface = priv->dib.bitmap_data;
 174         This->surface_desc.dwFlags |= DDSD_LPSURFACE;
 175     }
 176
 177     HeapFree(GetProcessHeap(), 0, b_info);
 178
 179     /* I don't think it's worth checking for this. */
 180     if (priv->dib.bitmap_data != This->surface_desc.lpSurface)
 181         ERR("unexpected error creating DirectDrawSurface DIB section\n");
 182
 183     /* this seems like a good place to put the handle for HAL driver use */
 184     This->global_more.hKernelSurface = (ULONG_PTR)priv->dib.DIBsection;
 185
 186     return S_OK;
 187 }
 188
 189 void DIB_DirectDrawSurface_final_release(IDirectDrawSurfaceImpl* This)
 190 {
 191     DIB_DirectDrawSurfaceImpl* priv = This->private;
 192
 193     DeleteObject(priv->dib.DIBsection);
 194
 195     if (!priv->dib.client_memory)
 196         VirtualFree(This->surface_desc.lpSurface, 0, MEM_RELEASE);
 197
 198     Main_DirectDrawSurface_final_release(This);
 199 }
 200
 201 HRESULT DIB_DirectDrawSurface_duplicate_surface(IDirectDrawSurfaceImpl* This,
 202                                                 LPDIRECTDRAWSURFACE7* ppDup)
 203 {
 204     return DIB_DirectDrawSurface_Create(This->ddraw_owner,
 205                                         &This->surface_desc, ppDup, NULL);
 206 }
 207
 208 HRESULT DIB_DirectDrawSurface_Construct(IDirectDrawSurfaceImpl *This,
 209                                         IDirectDrawImpl *pDD,
 210                                         const DDSURFACEDESC2 *pDDSD)
 211 {
 212     HRESULT hr;
 213     DIB_DirectDrawSurfaceImpl* priv = This->private;
 214
 215     TRACE("(%p)->(%p,%p)\n",This,pDD,pDDSD);
 216     hr = Main_DirectDrawSurface_Construct(This, pDD, pDDSD);
 217     if (FAILED(hr)) return hr;
 218
 219     ICOM_INIT_INTERFACE(This, IDirectDrawSurface7,
 220                         DIB_IDirectDrawSurface7_VTable);
 221
 222     This->final_release = DIB_DirectDrawSurface_final_release;
 223     This->duplicate_surface = DIB_DirectDrawSurface_duplicate_surface;
 224     This->flip_data = DIB_DirectDrawSurface_flip_data;
 225
 226     This->get_dc     = DIB_DirectDrawSurface_get_dc;
 227     This->release_dc = DIB_DirectDrawSurface_release_dc;
 228     This->hDC = NULL;
 229
 230     This->set_palette    = DIB_DirectDrawSurface_set_palette;
 231     This->update_palette = DIB_DirectDrawSurface_update_palette;
 232
 233     TRACE("(%ldx%ld, pitch=%ld)\n",
 234           This->surface_desc.dwWidth, This->surface_desc.dwHeight,
 235           This->surface_desc.u1.lPitch);
 236     /* XXX load dwWidth and dwHeight from pDD if they are not specified? */
 237
 238     if (This->surface_desc.dwFlags & DDSD_LPSURFACE)
 239     {
 240         /* "Client memory": it is managed by the application. */
 241         /* XXX What if lPitch is not set? Use dwWidth or fail? */
 242
 243         priv->dib.client_memory = TRUE;
 244     }
 245     else
 246     {
 247         if (!(This->surface_desc.dwFlags & DDSD_PITCH))
 248         {
 249             int pitch = This->surface_desc.u1.lPitch;
 250             if (pitch % 8 != 0)
 251                 pitch += 8 - (pitch % 8);
 252         }
 253         /* XXX else: how should lPitch be verified? */
 254
 255         This->surface_desc.dwFlags |= DDSD_LPSURFACE;
 256
 257         /* Ensure that DDSD_PITCH is respected for DDPF_FOURCC surfaces too */
 258         if (This->surface_desc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC && !(This->surface_desc.dwFlags & DDSD_PITCH)) {
 259             This->surface_desc.lpSurface
 260                 = VirtualAlloc(NULL, This->surface_desc.u1.dwLinearSize, MEM_COMMIT, PAGE_READWRITE);
 261             This->surface_desc.dwFlags |= DDSD_LINEARSIZE;
 262         } else {
 263             This->surface_desc.lpSurface
 264                 = VirtualAlloc(NULL, This->surface_desc.u1.lPitch
 265                            * This->surface_desc.dwHeight + 4, /* The + 4 here is for dumb games reading after the end of the surface
 266                                                                  when reading the last byte / half using word access */
 267                            MEM_COMMIT, PAGE_READWRITE);
 268             This->surface_desc.dwFlags |= DDSD_PITCH;
 269         }
 270
 271         if (This->surface_desc.lpSurface == NULL)
 272         {
 273             Main_DirectDrawSurface_final_release(This);
 274             return HRESULT_FROM_WIN32(GetLastError());
 275         }
 276
 277         priv->dib.client_memory = FALSE;
 278     }
 279
 280     hr = create_dib(This);
 281     if (FAILED(hr))
 282     {
 283         if (!priv->dib.client_memory)
 284             VirtualFree(This->surface_desc.lpSurface, 0, MEM_RELEASE);
 285
 286         Main_DirectDrawSurface_final_release(This);
 287
 288         return hr;
 289     }
 290
 291     return DD_OK;
 292 }
 293
 294 /* Not an API */
 295 HRESULT DIB_DirectDrawSurface_Create(IDirectDrawImpl *pDD,
 296                                      const DDSURFACEDESC2 *pDDSD,
 297                                      LPDIRECTDRAWSURFACE7 *ppSurf,
 298                                      IUnknown *pUnkOuter)
 299 {
 300     IDirectDrawSurfaceImpl* This;
 301     HRESULT hr;
 302     assert(pUnkOuter == NULL);
 303
 304     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 305                      sizeof(*This) + sizeof(DIB_DirectDrawSurfaceImpl));
 306     if (This == NULL) return E_OUTOFMEMORY;
 307
 308     This->private = (DIB_DirectDrawSurfaceImpl*)(This+1);
 309
 310     hr = DIB_DirectDrawSurface_Construct(This, pDD, pDDSD);
 311     if (FAILED(hr))
 312         HeapFree(GetProcessHeap(), 0, This);
 313     else
 314         *ppSurf = ICOM_INTERFACE(This, IDirectDrawSurface7);
 315
 316     return hr;
 317
 318 }
 319
 320 /* AddAttachedSurface: generic */
 321 /* AddOverlayDirtyRect: generic, unimplemented */
 322
 323 static HRESULT _Blt_ColorFill(
 324     LPBYTE buf, int width, int height, int bpp, LONG lPitch, DWORD color
 325 ) {
 326     int x, y;
 327     LPBYTE first;
 328
 329     /* Do first row */
 330
 331 #define COLORFILL_ROW(type) { \
 332     type *d = (type *) buf; \
 333     for (x = 0; x < width; x++) \
 334         d[x] = (type) color; \
 335     break; \
 336 }
 337
 338     switch(bpp) {
 339     case 1: COLORFILL_ROW(BYTE)
 340     case 2: COLORFILL_ROW(WORD)
 341     case 3: { BYTE *d = (BYTE *) buf;
 342               for (x = 0; x < width; x++,d+=3) {
 343                 d[0] = (color    ) & 0xFF;
 344                 d[1] = (color>> 8) & 0xFF;
 345                 d[2] = (color>>16) & 0xFF;
 346               }
 347               break;}
 348     case 4: COLORFILL_ROW(DWORD)
 349     default:
 350         FIXME("Color fill not implemented for bpp %d!\n", bpp*8);
 351         return DDERR_UNSUPPORTED;
 352     }
 353
 354 #undef COLORFILL_ROW
 355
 356     /* Now copy first row */
 357     first = buf;
 358     for (y = 1; y < height; y++) {
 359         buf += lPitch;
 360         memcpy(buf, first, width * bpp);
 361     }
 362     return DD_OK;
 363 }
 364
 365 static void ComputeShifts(DWORD mask, DWORD* lshift, DWORD* rshift)
 366 {
 367     int pos = 0;
 368     int bits = 0;
 369     *lshift = 0;
 370     *rshift = 0;
 371
 372     if (!mask)
 373         return;
 374
 375     while(!(mask & (1 << pos)))
 376         pos++;
 377
 378     while(mask & (1 << (pos+bits)))
 379         bits++;
 380
 381     *lshift = pos;
 382     *rshift = 8 - bits;
 383 }
 384
 385 /* This is used to factorize the decompression between the Blt and BltFast code */
 386 static void DoDXTCDecompression(const DDSURFACEDESC2 *sdesc, const DDSURFACEDESC2 *ddesc)
 387 {
 388     DWORD rs,rb,rm;
 389     DWORD gs,gb,gm;
 390     DWORD bs,bb,bm;
 391     DWORD as,ab,am;
 392
 393     if (!s3tc_initialized) {
 394         /* FIXME: We may fake this by rendering the texture into the framebuffer using OpenGL functions and reading back
 395          *        the framebuffer. This will be slow and somewhat ugly. */
 396         FIXME("Manual S3TC decompression is not supported in native mode\n");
 397         return;
 398     }
 399
 400     rm = ddesc->u4.ddpfPixelFormat.u2.dwRBitMask;
 401     ComputeShifts(rm, &rs, &rb);
 402     gm = ddesc->u4.ddpfPixelFormat.u3.dwGBitMask;
 403     ComputeShifts(gm, &gs, &gb);
 404     bm = ddesc->u4.ddpfPixelFormat.u4.dwBBitMask;
 405     ComputeShifts(bm, &bs, &bb);
 406     am = ddesc->u4.ddpfPixelFormat.u5.dwRGBAlphaBitMask;
 407     ComputeShifts(am, &as, &ab);
 408     if (sdesc->u4.ddpfPixelFormat.dwFourCC == MAKE_FOURCC('D','X','T','1')) {
 409         int is16 = ddesc->u4.ddpfPixelFormat.u1.dwRGBBitCount == 16;
 410         int pitch = ddesc->u1.lPitch;
 411         int width = ddesc->dwWidth;
 412         int height = ddesc->dwHeight;
 413         int x,y;
 414         char* dst = (char*) ddesc->lpSurface;
 415         char* src = (char*) sdesc->lpSurface;
 416         for (x = 0; x < width; x++)
 417             for (y =0; y < height; y++) {
 418                 DWORD pixel = 0;
 419                 BYTE data[4];
 420                 (*fetch_2d_texel_rgba_dxt1)(width, src, x, y, data);
 421                 pixel = 0;
 422                 pixel |= ((data[0] >> rb) << rs) & rm;
 423                 pixel |= ((data[1] >> gb) << gs) & gm;
 424                 pixel |= ((data[2] >> bb) << bs) & bm;
 425                 pixel |= ((data[3] >> ab) << as) & am;
 426                 if (is16)
 427                     *((WORD*)(dst+y*pitch+x*(is16?2:4))) = pixel;
 428                 else
 429                     *((DWORD*)(dst+y*pitch+x*(is16?2:4))) = pixel;
 430             }
 431     } else if (sdesc->u4.ddpfPixelFormat.dwFourCC == MAKE_FOURCC('D','X','T','3')) {
 432         int is16 = ddesc->u4.ddpfPixelFormat.u1.dwRGBBitCount == 16;
 433         int pitch = ddesc->u1.lPitch;
 434         int width = ddesc->dwWidth;
 435         int height = ddesc->dwHeight;
 436         int x,y;
 437         char* dst = (char*) ddesc->lpSurface;
 438         char* src = (char*) sdesc->lpSurface;
 439         for (x = 0; x < width; x++)
 440             for (y =0; y < height; y++) {
 441                 DWORD pixel = 0;
 442                 BYTE data[4];
 443                 (*fetch_2d_texel_rgba_dxt3)(width, src, x, y, data);
 444                 pixel = 0;
 445                 pixel |= ((data[0] >> rb) << rs) & rm;
 446                 pixel |= ((data[1] >> gb) << gs) & gm;
 447                 pixel |= ((data[2] >> bb) << bs) & bm;
 448                 pixel |= ((data[3] >> ab) << as) & am;
 449                 if (is16)
 450                     *((WORD*)(dst+y*pitch+x*(is16?2:4))) = pixel;
 451                 else
 452                     *((DWORD*)(dst+y*pitch+x*(is16?2:4))) = pixel;
 453             }
 454     } else if (sdesc->u4.ddpfPixelFormat.dwFourCC == MAKE_FOURCC('D','X','T','5')) {
 455         int is16 = ddesc->u4.ddpfPixelFormat.u1.dwRGBBitCount == 16;
 456         int pitch = ddesc->u1.lPitch;
 457         int width = ddesc->dwWidth;
 458         int height = ddesc->dwHeight;
 459         int x,y;
 460         char* dst = (char*) ddesc->lpSurface;
 461         char* src = (char*) sdesc->lpSurface;
 462         for (x = 0; x < width; x++)
 463             for (y =0; y < height; y++) {
 464                 DWORD pixel = 0;
 465                 BYTE data[4];
 466                 (*fetch_2d_texel_rgba_dxt5)(width, src, x, y, data);
 467                 pixel = 0;
 468                 pixel |= ((data[0] >> rb) << rs) & rm;
 469                 pixel |= ((data[1] >> gb) << gs) & gm;
 470                 pixel |= ((data[2] >> bb) << bs) & bm;
 471                 pixel |= ((data[3] >> ab) << as) & am;
 472                 if (is16)
 473                     *((WORD*)(dst+y*pitch+x*(is16?2:4))) = pixel;
 474                 else
 475                     *((DWORD*)(dst+y*pitch+x*(is16?2:4))) = pixel;
 476             }
 477     }
 478 #if 0 /* Usefull for debugging */
 479     {
 480         static int idx;
 481         char texname[255];
 482         FILE* f;
 483         sprintf(texname, "dxt_%d.pnm", idx++);
 484         f = fopen(texname,"w");
 485         DDRAW_dump_surface_to_disk(This, f, 1);
 486         fclose(f);
 487     }
 488 #endif
 489 }
 490
 491 HRESULT WINAPI
 492 DIB_DirectDrawSurface_Blt(LPDIRECTDRAWSURFACE7 iface, LPRECT rdst,
 493                           LPDIRECTDRAWSURFACE7 src, LPRECT rsrc,
 494                           DWORD dwFlags, LPDDBLTFX lpbltfx)
 495 {
 496     IDirectDrawSurfaceImpl *This = (IDirectDrawSurfaceImpl *)iface;
 497     RECT                xdst,xsrc;
 498     DDSURFACEDESC2      ddesc,sdesc;
 499     HRESULT             ret = DD_OK;
 500     int bpp, srcheight, srcwidth, dstheight, dstwidth, width;
 501     int x, y;
 502     LPBYTE dbuf, sbuf;
 503
 504     TRACE("(%p)->(%p,%p,%p,%08lx,%p)\n", This,rdst,src,rsrc,dwFlags,lpbltfx);
 505
 506     if (TRACE_ON(ddraw)) {
 507         if (rdst) TRACE("\tdestrect :%ldx%ld-%ldx%ld\n",rdst->left,rdst->top,rdst->right,rdst->bottom);
 508         if (rsrc) TRACE("\tsrcrect  :%ldx%ld-%ldx%ld\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
 509         TRACE("\tflags: ");
 510         DDRAW_dump_DDBLT(dwFlags);
 511         if (dwFlags & DDBLT_DDFX) {
 512             TRACE("\tblitfx: ");
 513             DDRAW_dump_DDBLTFX(lpbltfx->dwDDFX);
 514         }
 515     }
 516
 517     if ((This->locked) || ((src != NULL) && (((IDirectDrawSurfaceImpl *)src)->locked))) {
 518         WARN(" Surface is busy, returning DDERR_SURFACEBUSY\n");
 519         return DDERR_SURFACEBUSY;
 520     }
 521
 522     /* First, check if the possible override function handles this case */
 523     if (This->aux_blt != NULL) {
 524         if (This->aux_blt(This, rdst, src, rsrc, dwFlags, lpbltfx) == DD_OK) return DD_OK;
 525     }
 526
 527     DD_STRUCT_INIT(&ddesc);
 528     DD_STRUCT_INIT(&sdesc);
 529
 530     sdesc.dwSize = sizeof(sdesc);
 531     if (src) IDirectDrawSurface7_Lock(src, NULL, &sdesc, DDLOCK_READONLY, 0);
 532     ddesc.dwSize = sizeof(ddesc);
 533     IDirectDrawSurface7_Lock(iface,NULL,&ddesc,DDLOCK_WRITEONLY,0);
 534
 535     if ((sdesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC) &&
 536         (ddesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC)) {
 537         if (sdesc.u4.ddpfPixelFormat.dwFourCC != sdesc.u4.ddpfPixelFormat.dwFourCC) {
 538             FIXME("FOURCC->FOURCC copy only supported for the same type of surface\n");
 539             ret = DDERR_INVALIDPIXELFORMAT;
 540             goto release;
 541         }
 542         memcpy(ddesc.lpSurface, sdesc.lpSurface, ddesc.u1.dwLinearSize);
 543         goto release;
 544     }
 545
 546     if ((sdesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC) &&
 547         (!(ddesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC))) {
 548         DoDXTCDecompression(&sdesc, &ddesc);
 549         goto release;
 550     }
 551
 552     if (rdst) {
 553         memcpy(&xdst,rdst,sizeof(xdst));
 554     } else {
 555         xdst.top        = 0;
 556         xdst.bottom     = ddesc.dwHeight;
 557         xdst.left       = 0;
 558         xdst.right      = ddesc.dwWidth;
 559     }
 560
 561     if (rsrc) {
 562         memcpy(&xsrc,rsrc,sizeof(xsrc));
 563     } else {
 564         if (src) {
 565             xsrc.top    = 0;
 566             xsrc.bottom = sdesc.dwHeight;
 567             xsrc.left   = 0;
 568             xsrc.right  = sdesc.dwWidth;
 569         } else {
 570             memset(&xsrc,0,sizeof(xsrc));
 571         }
 572     }
 573
 574     /* First check for the validity of source / destination rectangles. This was
 575        verified using a test application + by MSDN.
 576     */
 577     if ((src != NULL) &&
 578         ((xsrc.bottom > sdesc.dwHeight) || (xsrc.bottom < 0) ||
 579          (xsrc.top > sdesc.dwHeight) || (xsrc.top < 0) ||
 580          (xsrc.left > sdesc.dwWidth) || (xsrc.left < 0) ||
 581          (xsrc.right > sdesc.dwWidth) || (xsrc.right < 0) ||
 582          (xsrc.right < xsrc.left) || (xsrc.bottom < xsrc.top))) {
 583         WARN("Application gave us bad source rectangle for Blt.\n");
 584         return DDERR_INVALIDRECT;
 585     }
 586     /* For the Destination rect, it can be out of bounds on the condition that a clipper
 587        is set for the given surface.
 588     */
 589     if ((This->clipper == NULL) &&
 590         ((xdst.bottom > ddesc.dwHeight) || (xdst.bottom < 0) ||
 591          (xdst.top > ddesc.dwHeight) || (xdst.top < 0) ||
 592          (xdst.left > ddesc.dwWidth) || (xdst.left < 0) ||
 593          (xdst.right > ddesc.dwWidth) || (xdst.right < 0) ||
 594          (xdst.right < xdst.left) || (xdst.bottom < xdst.top))) {
 595         WARN("Application gave us bad destination rectangle for Blt without a clipper set.\n");
 596         return DDERR_INVALIDRECT;
 597     }
 598
 599     /* Now handle negative values in the rectangles. Warning: only supported for now
 600        in the 'simple' cases (ie not in any stretching / rotation cases).
 601
 602        First, the case where nothing is to be done.
 603     */
 604     if (((xdst.bottom <= 0) || (xdst.right <= 0) || (xdst.top >= (int) ddesc.dwHeight) || (xdst.left >= (int) ddesc.dwWidth)) ||
 605         ((src != NULL) &&
 606          ((xsrc.bottom <= 0) || (xsrc.right <= 0) || (xsrc.top >= (int) sdesc.dwHeight) || (xsrc.left >= (int) sdesc.dwWidth))))
 607     {
 608         TRACE("Nothing to be done !\n");
 609         goto release;
 610     }
 611
 612     /* The easy case : the source-less blits.... */
 613     if (src == NULL) {
 614         RECT full_rect;
 615         RECT temp_rect; /* No idea if intersect rect can be the same as one of the source rect */
 616
 617         full_rect.left   = 0;
 618         full_rect.top    = 0;
 619         full_rect.right  = ddesc.dwWidth;
 620         full_rect.bottom = ddesc.dwHeight;
 621         IntersectRect(&temp_rect, &full_rect, &xdst);
 622         xdst = temp_rect;
 623     } else {
 624         /* Only handle clipping on the destination rectangle */
 625         int clip_horiz = (xdst.left < 0) || (xdst.right  > (int) ddesc.dwWidth );
 626         int clip_vert  = (xdst.top  < 0) || (xdst.bottom > (int) ddesc.dwHeight);
 627         if (clip_vert || clip_horiz) {
 628             /* Now check if this is a special case or not... */
 629             if ((((xdst.bottom - xdst.top ) != (xsrc.bottom - xsrc.top )) && clip_vert ) ||
 630                 (((xdst.right  - xdst.left) != (xsrc.right  - xsrc.left)) && clip_horiz) ||
 631                 (dwFlags & DDBLT_DDFX)) {
 632                 WARN("Out of screen rectangle in special case. Not handled right now.\n");
 633                 goto release;
 634             }
 635
 636             if (clip_horiz) {
 637               if (xdst.left < 0) { xsrc.left -= xdst.left; xdst.left = 0; }
 638               if (xdst.right > ddesc.dwWidth) { xsrc.right -= (xdst.right - (int) ddesc.dwWidth); xdst.right = (int) ddesc.dwWidth; }
 639             }
 640             if (clip_vert) {
 641                 if (xdst.top < 0) { xsrc.top -= xdst.top; xdst.top = 0; }
 642                 if (xdst.bottom > ddesc.dwHeight) { xsrc.bottom -= (xdst.bottom - (int) ddesc.dwHeight); xdst.bottom = (int) ddesc.dwHeight; }
 643             }
 644             /* And check if after clipping something is still to be done... */
 645             if ((xdst.bottom <= 0) || (xdst.right <= 0) || (xdst.top >= (int) ddesc.dwHeight) || (xdst.left >= (int) ddesc.dwWidth) ||
 646                 (xsrc.bottom <= 0) || (xsrc.right <= 0) || (xsrc.top >= (int) sdesc.dwHeight) || (xsrc.left >= (int) sdesc.dwWidth)) {
 647                 TRACE("Nothing to be done after clipping !\n");
 648                 goto release;
 649             }
 650         }
 651     }
 652
 653     bpp = GET_BPP(ddesc);
 654     srcheight = xsrc.bottom - xsrc.top;
 655     srcwidth = xsrc.right - xsrc.left;
 656     dstheight = xdst.bottom - xdst.top;
 657     dstwidth = xdst.right - xdst.left;
 658     width = (xdst.right - xdst.left) * bpp;
 659
 660     assert(width <= ddesc.u1.lPitch);
 661
 662     dbuf = (BYTE*)ddesc.lpSurface+(xdst.top*ddesc.u1.lPitch)+(xdst.left*bpp);
 663
 664     if (dwFlags & (DDBLT_WAIT|DDBLT_ASYNC))
 665     {
 666         static BOOL displayed = FALSE;
 667         if (!displayed)
 668         {
 669             FIXME("dwFlags DDBLT_WAIT and/or DDBLT_ASYNC: can't handle right now.\n");
 670             displayed = TRUE;
 671         }
 672         dwFlags &= ~(DDBLT_WAIT|DDBLT_ASYNC);
 673     }
 674
 675     /* First, all the 'source-less' blits */
 676     if (dwFlags & DDBLT_COLORFILL) {
 677         ret = _Blt_ColorFill(dbuf, dstwidth, dstheight, bpp,
 678                              ddesc.u1.lPitch, lpbltfx->u5.dwFillColor);
 679         dwFlags &= ~DDBLT_COLORFILL;
 680     }
 681
 682     if (dwFlags & DDBLT_DEPTHFILL)
 683         FIXME("DDBLT_DEPTHFILL needs to be implemented!\n");
 684     if (dwFlags & DDBLT_ROP) {
 685         /* Catch some degenerate cases here */
 686         switch(lpbltfx->dwROP) {
 687         case BLACKNESS:
 688             ret = _Blt_ColorFill(dbuf,dstwidth,dstheight,bpp,ddesc.u1.lPitch,0);
 689             break;
 690         case 0xAA0029: /* No-op */
 691             break;
 692         case WHITENESS:
 693             ret = _Blt_ColorFill(dbuf,dstwidth,dstheight,bpp,ddesc.u1.lPitch,~0);
 694             break;
 695         case SRCCOPY: /* well, we do that below ? */
 696             break;
 697         default:
 698             FIXME("Unsupported raster op: %08lx  Pattern: %p\n", lpbltfx->dwROP, lpbltfx->u5.lpDDSPattern);
 699             goto error;
 700         }
 701         dwFlags &= ~DDBLT_ROP;
 702     }
 703     if (dwFlags & DDBLT_DDROPS) {
 704         FIXME("\tDdraw Raster Ops: %08lx  Pattern: %p\n", lpbltfx->dwDDROP, lpbltfx->u5.lpDDSPattern);
 705     }
 706     /* Now the 'with source' blits */
 707     if (src) {
 708         LPBYTE sbase;
 709         int sx, xinc, sy, yinc;
 710
 711         if (!dstwidth || !dstheight) /* hmm... stupid program ? */
 712             goto release;
 713         sbase = (BYTE*)sdesc.lpSurface+(xsrc.top*sdesc.u1.lPitch)+xsrc.left*bpp;
 714         xinc = (srcwidth << 16) / dstwidth;
 715         yinc = (srcheight << 16) / dstheight;
 716
 717         if (!dwFlags) {
 718             /* No effects, we can cheat here */
 719             if (dstwidth == srcwidth) {
 720                 if (dstheight == srcheight) {
 721                     /* No stretching in either direction. This needs to be as
 722                      * fast as possible */
 723                     sbuf = sbase;
 724
 725                     /* check for overlapping surfaces */
 726                     if (src != iface || xdst.top < xsrc.top ||
 727                         xdst.right <= xsrc.left || xsrc.right <= xdst.left)
 728                     {
 729                         /* no overlap, or dst above src, so copy from top downwards */
 730                         for (y = 0; y < dstheight; y++)
 731                         {
 732                             memcpy(dbuf, sbuf, width);
 733                             sbuf += sdesc.u1.lPitch;
 734                             dbuf += ddesc.u1.lPitch;
 735                         }
 736                     }
 737                     else if (xdst.top > xsrc.top)  /* copy from bottom upwards */
 738                     {
 739                         sbuf += (sdesc.u1.lPitch*dstheight);
 740                         dbuf += (ddesc.u1.lPitch*dstheight);
 741                         for (y = 0; y < dstheight; y++)
 742                         {
 743                             sbuf -= sdesc.u1.lPitch;
 744                             dbuf -= ddesc.u1.lPitch;
 745                             memcpy(dbuf, sbuf, width);
 746                         }
 747                     }
 748                     else /* src and dst overlapping on the same line, use memmove */
 749                     {
 750                         for (y = 0; y < dstheight; y++)
 751                         {
 752                             memmove(dbuf, sbuf, width);
 753                             sbuf += sdesc.u1.lPitch;
 754                             dbuf += ddesc.u1.lPitch;
 755                         }
 756                     }
 757                 } else {
 758                     /* Stretching in Y direction only */
 759                     for (y = sy = 0; y < dstheight; y++, sy += yinc) {
 760                         sbuf = sbase + (sy >> 16) * sdesc.u1.lPitch;
 761                         memcpy(dbuf, sbuf, width);
 762                         dbuf += ddesc.u1.lPitch;
 763                     }
 764                 }
 765             } else {
 766                 /* Stretching in X direction */
 767                 int last_sy = -1;
 768                 for (y = sy = 0; y < dstheight; y++, sy += yinc) {
 769                     sbuf = sbase + (sy >> 16) * sdesc.u1.lPitch;
 770
 771                     if ((sy >> 16) == (last_sy >> 16)) {
 772                         /* this sourcerow is the same as last sourcerow -
 773                          * copy already stretched row
 774                          */
 775                         memcpy(dbuf, dbuf - ddesc.u1.lPitch, width);
 776                     } else {
 777 #define STRETCH_ROW(type) { \
 778                     type *s = (type *) sbuf, *d = (type *) dbuf; \
 779                     for (x = sx = 0; x < dstwidth; x++, sx += xinc) \
 780                     d[x] = s[sx >> 16]; \
 781                     break; }
 782
 783                     switch(bpp) {
 784                     case 1: STRETCH_ROW(BYTE)
 785                     case 2: STRETCH_ROW(WORD)
 786                     case 4: STRETCH_ROW(DWORD)
 787                     case 3: {
 788                         LPBYTE s,d = dbuf;
 789                         for (x = sx = 0; x < dstwidth; x++, sx+= xinc) {
 790                             DWORD pixel;
 791
 792                             s = sbuf+3*(sx>>16);
 793                             pixel = s[0]|(s[1]<<8)|(s[2]<<16);
 794                             d[0] = (pixel    )&0xff;
 795                             d[1] = (pixel>> 8)&0xff;
 796                             d[2] = (pixel>>16)&0xff;
 797                             d+=3;
 798                         }
 799                         break;
 800                     }
 801                     default:
 802                         FIXME("Stretched blit not implemented for bpp %d!\n", bpp*8);
 803                         ret = DDERR_UNSUPPORTED;
 804                         goto error;
 805                     }
 806 #undef STRETCH_ROW
 807                     }
 808                     dbuf += ddesc.u1.lPitch;
 809                     last_sy = sy;
 810                 }
 811             }
 812         } else {
 813            LONG dstyinc = ddesc.u1.lPitch, dstxinc = bpp;
 814            DWORD keylow = 0, keyhigh = 0;
 815            if (dwFlags & (DDBLT_KEYSRC | DDBLT_KEYDEST | DDBLT_KEYSRCOVERRIDE | DDBLT_KEYDESTOVERRIDE)) {
 816
 817               if (dwFlags & DDBLT_KEYSRC) {
 818                  keylow  = sdesc.ddckCKSrcBlt.dwColorSpaceLowValue;
 819                  keyhigh = sdesc.ddckCKSrcBlt.dwColorSpaceHighValue;
 820               } else if (dwFlags & DDBLT_KEYDEST){
 821                  keylow  = ddesc.ddckCKDestBlt.dwColorSpaceLowValue;
 822                  keyhigh = ddesc.ddckCKDestBlt.dwColorSpaceHighValue;
 823               } else if (dwFlags & DDBLT_KEYSRCOVERRIDE) {
 824                  keylow  = lpbltfx->ddckSrcColorkey.dwColorSpaceLowValue;
 825                  keyhigh = lpbltfx->ddckSrcColorkey.dwColorSpaceHighValue;
 826               } else {
 827                  keylow  = lpbltfx->ddckDestColorkey.dwColorSpaceLowValue;
 828                  keyhigh = lpbltfx->ddckDestColorkey.dwColorSpaceHighValue;
 829               }
 830               dwFlags &= ~(DDBLT_KEYSRC | DDBLT_KEYDEST | DDBLT_KEYSRCOVERRIDE | DDBLT_KEYDESTOVERRIDE);
 831            }
 832
 833            if (dwFlags & DDBLT_DDFX)  {
 834               LPBYTE dTopLeft, dTopRight, dBottomLeft, dBottomRight, tmp;
 835               LONG tmpxy;
 836               dTopLeft     = dbuf;
 837               dTopRight    = dbuf+((dstwidth-1)*bpp);
 838               dBottomLeft  = dTopLeft+((dstheight-1)*ddesc.u1.lPitch);
 839               dBottomRight = dBottomLeft+((dstwidth-1)*bpp);
 840
 841               if (lpbltfx->dwDDFX & DDBLTFX_ARITHSTRETCHY){
 842                  /* I don't think we need to do anything about this flag */
 843                  WARN("dwflags=DDBLT_DDFX nothing done for DDBLTFX_ARITHSTRETCHY\n");
 844               }
 845               if (lpbltfx->dwDDFX & DDBLTFX_MIRRORLEFTRIGHT) {
 846                  tmp          = dTopRight;
 847                  dTopRight    = dTopLeft;
 848                  dTopLeft     = tmp;
 849                  tmp          = dBottomRight;
 850                  dBottomRight = dBottomLeft;
 851                  dBottomLeft  = tmp;
 852                  dstxinc = dstxinc *-1;
 853               }
 854               if (lpbltfx->dwDDFX & DDBLTFX_MIRRORUPDOWN) {
 855                  tmp          = dTopLeft;
 856                  dTopLeft     = dBottomLeft;
 857                  dBottomLeft  = tmp;
 858                  tmp          = dTopRight;
 859                  dTopRight    = dBottomRight;
 860                  dBottomRight = tmp;
 861                  dstyinc = dstyinc *-1;
 862               }
 863               if (lpbltfx->dwDDFX & DDBLTFX_NOTEARING) {
 864                  /* I don't think we need to do anything about this flag */
 865                  WARN("dwflags=DDBLT_DDFX nothing done for DDBLTFX_NOTEARING\n");
 866               }
 867               if (lpbltfx->dwDDFX & DDBLTFX_ROTATE180) {
 868                  tmp          = dBottomRight;
 869                  dBottomRight = dTopLeft;
 870                  dTopLeft     = tmp;
 871                  tmp          = dBottomLeft;
 872                  dBottomLeft  = dTopRight;
 873                  dTopRight    = tmp;
 874                  dstxinc = dstxinc * -1;
 875                  dstyinc = dstyinc * -1;
 876               }
 877               if (lpbltfx->dwDDFX & DDBLTFX_ROTATE270) {
 878                  tmp          = dTopLeft;
 879                  dTopLeft     = dBottomLeft;
 880                  dBottomLeft  = dBottomRight;
 881                  dBottomRight = dTopRight;
 882                  dTopRight    = tmp;
 883                  tmpxy   = dstxinc;
 884                  dstxinc = dstyinc;
 885                  dstyinc = tmpxy;
 886                  dstxinc = dstxinc * -1;
 887               }
 888               if (lpbltfx->dwDDFX & DDBLTFX_ROTATE90) {
 889                  tmp          = dTopLeft;
 890                  dTopLeft     = dTopRight;
 891                  dTopRight    = dBottomRight;
 892                  dBottomRight = dBottomLeft;
 893                  dBottomLeft  = tmp;
 894                  tmpxy   = dstxinc;
 895                  dstxinc = dstyinc;
 896                  dstyinc = tmpxy;
 897                  dstyinc = dstyinc * -1;
 898               }
 899               if (lpbltfx->dwDDFX & DDBLTFX_ZBUFFERBASEDEST) {
 900                  /* I don't think we need to do anything about this flag */
 901                  WARN("dwflags=DDBLT_DDFX nothing done for DDBLTFX_ZBUFFERBASEDEST\n");
 902               }
 903               dbuf = dTopLeft;
 904               dwFlags &= ~(DDBLT_DDFX);
 905            }
 906
 907 #define COPY_COLORKEY_FX(type) { \
 908             type *s, *d = (type *) dbuf, *dx, tmp; \
 909             for (y = sy = 0; y < dstheight; y++, sy += yinc) { \
 910                s = (type*)(sbase + (sy >> 16) * sdesc.u1.lPitch); \
 911                dx = d; \
 912                for (x = sx = 0; x < dstwidth; x++, sx += xinc) { \
 913                   tmp = s[sx >> 16]; \
 914                   if (tmp < keylow || tmp > keyhigh) dx[0] = tmp; \
 915                   dx = (type*)(((LPBYTE)dx)+dstxinc); \
 916                } \
 917                d = (type*)(((LPBYTE)d)+dstyinc); \
 918             } \
 919             break; }
 920
 921             switch (bpp) {
 922             case 1: COPY_COLORKEY_FX(BYTE)
 923             case 2: COPY_COLORKEY_FX(WORD)
 924             case 4: COPY_COLORKEY_FX(DWORD)
 925             case 3: {LPBYTE s,d = dbuf, dx;
 926                 for (y = sy = 0; y < dstheight; y++, sy += yinc) {
 927                     sbuf = sbase + (sy >> 16) * sdesc.u1.lPitch;
 928                     dx = d;
 929                     for (x = sx = 0; x < dstwidth; x++, sx+= xinc) {
 930                         DWORD pixel;
 931                         s = sbuf+3*(sx>>16);
 932                         pixel = s[0]|(s[1]<<8)|(s[2]<<16);
 933                         if (pixel < keylow || pixel > keyhigh){
 934                             dx[0] = (pixel    )&0xff;
 935                             dx[1] = (pixel>> 8)&0xff;
 936                             dx[2] = (pixel>>16)&0xff;
 937                         }
 938                         dx+= dstxinc;
 939                     }
 940                     d += dstyinc;
 941                 }
 942                 break;}
 943             default:
 944                FIXME("%s color-keyed blit not implemented for bpp %d!\n",
 945                   (dwFlags & DDBLT_KEYSRC) ? "Source" : "Destination", bpp*8);
 946                   ret = DDERR_UNSUPPORTED;
 947                   goto error;
 948 #undef COPY_COLORKEY_FX
 949             }
 950         }
 951     }
 952
 953 error:
 954     if (dwFlags && FIXME_ON(ddraw)) {
 955         FIXME("\tUnsupported flags: ");
 956         DDRAW_dump_DDBLT(dwFlags);
 957     }
 958
 959 release:
 960     IDirectDrawSurface7_Unlock(iface,NULL);
 961     if (src) IDirectDrawSurface7_Unlock(src,NULL);
 962     return DD_OK;
 963 }
 964
 965 /* BltBatch: generic, unimplemented */
 966
 967 HRESULT WINAPI
 968 DIB_DirectDrawSurface_BltFast(LPDIRECTDRAWSURFACE7 iface, DWORD dstx,
 969                               DWORD dsty, LPDIRECTDRAWSURFACE7 src,
 970                               LPRECT rsrc, DWORD trans)
 971 {
 972     IDirectDrawSurfaceImpl *This = (IDirectDrawSurfaceImpl *)iface;
 973     int                 bpp, w, h, x, y;
 974     DDSURFACEDESC2      ddesc,sdesc;
 975     HRESULT             ret = DD_OK;
 976     LPBYTE              sbuf, dbuf;
 977     RECT                rsrc2;
 978     RECT                lock_src, lock_dst;
 979
 980     if (TRACE_ON(ddraw)) {
 981         TRACE("(%p)->(%ld,%ld,%p,%p,%08lx)\n",
 982                 This,dstx,dsty,src,rsrc,trans
 983         );
 984         TRACE("\ttrans:");
 985         if (FIXME_ON(ddraw))
 986           DDRAW_dump_DDBLTFAST(trans);
 987         if (rsrc)
 988           TRACE("\tsrcrect: %ldx%ld-%ldx%ld\n",rsrc->left,rsrc->top,rsrc->right,rsrc->bottom);
 989         else
 990           TRACE(" srcrect: NULL\n");
 991     }
 992
 993     if ((This->locked) || ((src != NULL) && (((IDirectDrawSurfaceImpl *)src)->locked))) {
 994         WARN(" Surface is busy, returning DDERR_SURFACEBUSY\n");
 995         return DDERR_SURFACEBUSY;
 996     }
 997
 998     /* First, check if the possible override function handles this case */
 999     if (This->aux_bltfast != NULL) {
1000         if (This->aux_bltfast(This, dstx, dsty, src, rsrc, trans) == DD_OK) return DD_OK;
1001     }
1002
1003     /* Get the surface description without locking to first compute the width / height */
1004     ddesc = This->surface_desc;
1005     sdesc = (ICOM_OBJECT(IDirectDrawSurfaceImpl, IDirectDrawSurface7, src))->surface_desc;
1006
1007     if (!rsrc) {
1008         WARN("rsrc is NULL!\n");
1009         rsrc = &rsrc2;
1010         rsrc->left = rsrc->top = 0;
1011         rsrc->right = sdesc.dwWidth;
1012         rsrc->bottom = sdesc.dwHeight;
1013     }
1014
1015     /* Check source rect for validity. Copied from normal Blt. Fixes Baldur's Gate.*/
1016     if ((rsrc->bottom > sdesc.dwHeight) || (rsrc->bottom < 0) ||
1017         (rsrc->top > sdesc.dwHeight) || (rsrc->top < 0) ||
1018         (rsrc->left > sdesc.dwWidth) || (rsrc->left < 0) ||
1019         (rsrc->right > sdesc.dwWidth) || (rsrc->right < 0) ||
1020         (rsrc->right < rsrc->left) || (rsrc->bottom < rsrc->top)) {
1021         WARN("Application gave us bad source rectangle for BltFast.\n");
1022         return DDERR_INVALIDRECT;
1023     }
1024
1025     h=rsrc->bottom-rsrc->top;
1026     if (h>ddesc.dwHeight-dsty) h=ddesc.dwHeight-dsty;
1027     if (h>sdesc.dwHeight-rsrc->top) h=sdesc.dwHeight-rsrc->top;
1028     if (h<=0) return DDERR_INVALIDRECT;
1029
1030     w=rsrc->right-rsrc->left;
1031     if (w>ddesc.dwWidth-dstx) w=ddesc.dwWidth-dstx;
1032     if (w>sdesc.dwWidth-rsrc->left) w=sdesc.dwWidth-rsrc->left;
1033     if (w<=0) return DDERR_INVALIDRECT;
1034
1035     /* Now compute the locking rectangle... */
1036     lock_src.left = rsrc->left;
1037     lock_src.top = rsrc->top;
1038     lock_src.right = lock_src.left + w;
1039     lock_src.bottom = lock_src.top + h;
1040
1041     lock_dst.left = dstx;
1042     lock_dst.top = dsty;
1043     lock_dst.right = dstx + w;
1044     lock_dst.bottom = dsty + h;
1045
1046     /* We need to lock the surfaces, or we won't get refreshes when done. */
1047     sdesc.dwSize = sizeof(sdesc);
1048     IDirectDrawSurface7_Lock(src, &lock_src, &sdesc, DDLOCK_READONLY, 0);
1049     ddesc.dwSize = sizeof(ddesc);
1050     IDirectDrawSurface7_Lock(iface, &lock_dst, &ddesc, DDLOCK_WRITEONLY, 0);
1051
1052     /* Handle first the FOURCC surfaces... */
1053     if ((sdesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC) && (ddesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC)) {
1054         if (trans)
1055             FIXME("trans arg not supported when a FOURCC surface is involved\n");
1056         if (dstx || dsty)
1057             FIXME("offset for destination surface is not supported\n");
1058         if (sdesc.u4.ddpfPixelFormat.dwFourCC != sdesc.u4.ddpfPixelFormat.dwFourCC) {
1059             FIXME("FOURCC->FOURCC copy only supported for the same type of surface\n");
1060             ret = DDERR_INVALIDPIXELFORMAT;
1061             goto error;
1062         }
1063         memcpy(ddesc.lpSurface, sdesc.lpSurface, ddesc.u1.dwLinearSize);
1064         goto error;
1065     }
1066     if ((sdesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC) &&
1067         (!(ddesc.u4.ddpfPixelFormat.dwFlags & DDPF_FOURCC))) {
1068         DoDXTCDecompression(&sdesc, &ddesc);
1069         goto error;
1070     }
1071
1072     bpp = GET_BPP(This->surface_desc);
1073     sbuf = (BYTE *) sdesc.lpSurface;
1074     dbuf = (BYTE *) ddesc.lpSurface;
1075
1076     if (trans & (DDBLTFAST_SRCCOLORKEY | DDBLTFAST_DESTCOLORKEY)) {
1077         DWORD keylow, keyhigh;
1078         if (trans & DDBLTFAST_SRCCOLORKEY) {
1079             keylow  = sdesc.ddckCKSrcBlt.dwColorSpaceLowValue;
1080             keyhigh = sdesc.ddckCKSrcBlt.dwColorSpaceHighValue;
1081         } else {
1082             /* I'm not sure if this is correct */
1083             FIXME("DDBLTFAST_DESTCOLORKEY not fully supported yet.\n");
1084             keylow  = ddesc.ddckCKDestBlt.dwColorSpaceLowValue;
1085             keyhigh = ddesc.ddckCKDestBlt.dwColorSpaceHighValue;
1086         }
1087
1088 #define COPYBOX_COLORKEY(type) { \
1089             type *d, *s, tmp; \
1090             s = (type *) sdesc.lpSurface; \
1091             d = (type *) ddesc.lpSurface; \
1092             for (y = 0; y < h; y++) { \
1093                 for (x = 0; x < w; x++) { \
1094                     tmp = s[x]; \
1095                     if (tmp < keylow || tmp > keyhigh) d[x] = tmp; \
1096                 } \
1097                 s = (type *)((BYTE *)s + sdesc.u1.lPitch); \
1098                 d = (type *)((BYTE *)d + ddesc.u1.lPitch); \
1099             } \
1100             break; \
1101         }
1102
1103         switch (bpp) {
1104             case 1: COPYBOX_COLORKEY(BYTE)
1105             case 2: COPYBOX_COLORKEY(WORD)
1106             case 4: COPYBOX_COLORKEY(DWORD)
1107             case 3:
1108             {
1109                 BYTE *d, *s;
1110                 DWORD tmp;
1111                 s = (BYTE *) sdesc.lpSurface;
1112                 d = (BYTE *) ddesc.lpSurface;
1113                 for (y = 0; y < h; y++) {
1114                     for (x = 0; x < w * 3; x += 3) {
1115                         tmp = (DWORD)s[x] + ((DWORD)s[x + 1] << 8) + ((DWORD)s[x + 2] << 16);
1116                         if (tmp < keylow || tmp > keyhigh) {
1117                             d[x + 0] = s[x + 0];
1118                             d[x + 1] = s[x + 1];
1119                             d[x + 2] = s[x + 2];
1120                         }
1121                     }
1122                     s += sdesc.u1.lPitch;
1123                     d += ddesc.u1.lPitch;
1124                 }
1125                 break;
1126             }
1127             default:
1128                 FIXME("Source color key blitting not supported for bpp %d\n",bpp*8);
1129                 ret = DDERR_UNSUPPORTED;
1130                 goto error;
1131         }
1132 #undef COPYBOX_COLORKEY
1133     } else {
1134         int width = w * bpp;
1135
1136         for (y = 0; y < h; y++) {
1137             memcpy(dbuf, sbuf, width);
1138             sbuf += sdesc.u1.lPitch;
1139             dbuf += ddesc.u1.lPitch;
1140         }
1141     }
1142
1143 error:
1144     IDirectDrawSurface7_Unlock(iface, &lock_dst);
1145     IDirectDrawSurface7_Unlock(src, &lock_src);
1146     return ret;
1147 }
1148
1149 /* ChangeUniquenessValue: generic */
1150 /* DeleteAttachedSurface: generic */
1151 /* EnumAttachedSurfaces: generic */
1152 /* EnumOverlayZOrders: generic, unimplemented */
1153
1154 BOOL DIB_DirectDrawSurface_flip_data(IDirectDrawSurfaceImpl* front,
1155                                      IDirectDrawSurfaceImpl* back,
1156                                      DWORD dwFlags)
1157 {
1158     DIB_DirectDrawSurfaceImpl* front_priv = front->private;
1159     DIB_DirectDrawSurfaceImpl* back_priv = back->private;
1160
1161     TRACE("(%p,%p)\n",front,back);
1162
1163     {
1164         HBITMAP tmp;
1165         tmp = front_priv->dib.DIBsection;
1166         front_priv->dib.DIBsection = back_priv->dib.DIBsection;
1167         back_priv->dib.DIBsection = tmp;
1168     }
1169
1170     {
1171         void* tmp;
1172         tmp = front_priv->dib.bitmap_data;
1173         front_priv->dib.bitmap_data = back_priv->dib.bitmap_data;
1174         back_priv->dib.bitmap_data = tmp;
1175
1176         tmp = front->surface_desc.lpSurface;
1177         front->surface_desc.lpSurface = back->surface_desc.lpSurface;
1178         back->surface_desc.lpSurface = tmp;
1179     }
1180
1181     /* client_memory should not be different, but just in case */
1182     {
1183         BOOL tmp;
1184         tmp = front_priv->dib.client_memory;
1185         front_priv->dib.client_memory = back_priv->dib.client_memory;
1186         back_priv->dib.client_memory = tmp;
1187     }
1188
1189     return Main_DirectDrawSurface_flip_data(front, back, dwFlags);
1190 }
1191
1192 /* Flip: generic */
1193 /* FreePrivateData: generic */
1194 /* GetAttachedSurface: generic */
1195 /* GetBltStatus: generic */
1196 /* GetCaps: generic (Returns the caps from This->surface_desc.) */
1197 /* GetClipper: generic */
1198 /* GetColorKey: generic */
1199
1200 HRESULT DIB_DirectDrawSurface_alloc_dc(IDirectDrawSurfaceImpl* This, HDC* phDC)
1201 {
1202     DIB_PRIV_VAR(priv, This);
1203     HDC hDC;
1204
1205     TRACE("Grabbing a DC for surface: %p\n", This);
1206
1207     hDC = CreateCompatibleDC(0);
1208     priv->dib.holdbitmap = SelectObject(hDC, priv->dib.DIBsection);
1209     if (This->palette)
1210         SelectPalette(hDC, This->palette->hpal, FALSE);
1211
1212     *phDC = hDC;
1213
1214     return S_OK;
1215 }
1216
1217 HRESULT DIB_DirectDrawSurface_free_dc(IDirectDrawSurfaceImpl* This, HDC hDC)
1218 {
1219     DIB_PRIV_VAR(priv, This);
1220
1221     TRACE("Releasing DC for surface: %p\n", This);
1222
1223     SelectObject(hDC, priv->dib.holdbitmap);
1224     DeleteDC(hDC);
1225
1226     return S_OK;
1227 }
1228
1229 HRESULT DIB_DirectDrawSurface_get_dc(IDirectDrawSurfaceImpl* This, HDC* phDC)
1230 {
1231     return DIB_DirectDrawSurface_alloc_dc(This, phDC);
1232 }
1233
1234 HRESULT DIB_DirectDrawSurface_release_dc(IDirectDrawSurfaceImpl* This, HDC hDC)
1235 {
1236     return DIB_DirectDrawSurface_free_dc(This, hDC);
1237 }
1238
1239 /* GetDDInterface: generic */
1240 /* GetFlipStatus: generic */
1241 /* GetLOD: generic */
1242 /* GetOverlayPosition: generic */
1243 /* GetPalette: generic */
1244 /* GetPixelFormat: generic */
1245 /* GetPriority: generic */
1246 /* GetPrivateData: generic */
1247 /* GetSurfaceDesc: generic */
1248 /* GetUniquenessValue: generic */
1249 /* Initialize: generic */
1250 /* IsLost: generic */
1251 /* Lock: generic with callback? */
1252 /* PageLock: generic */
1253 /* PageUnlock: generic */
1254
1255 HRESULT WINAPI
1256 DIB_DirectDrawSurface_Restore(LPDIRECTDRAWSURFACE7 iface)
1257 {
1258     TRACE("(%p)\n",iface);
1259     return DD_OK;       /* ??? */
1260 }
1261
1262 /* SetClipper: generic */
1263 /* SetColorKey: generic */
1264 /* SetLOD: generic */
1265 /* SetOverlayPosition: generic */
1266
1267 void DIB_DirectDrawSurface_set_palette(IDirectDrawSurfaceImpl* This,
1268                                        IDirectDrawPaletteImpl* pal)
1269 {
1270     if (!pal) return;
1271     if (This->surface_desc.ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
1272         This->update_palette(This, pal,
1273                              0, pal->palNumEntries,
1274                              pal->palents);
1275 }
1276
1277 void DIB_DirectDrawSurface_update_palette(IDirectDrawSurfaceImpl* This,
1278                                           IDirectDrawPaletteImpl* pal,
1279                                           DWORD dwStart, DWORD dwCount,
1280                                           LPPALETTEENTRY palent)
1281 {
1282     RGBQUAD col[256];
1283     unsigned int n;
1284     HDC dc;
1285
1286     TRACE("updating primary palette\n");
1287     for (n=0; n<dwCount; n++) {
1288       col[n].rgbRed   = palent[n].peRed;
1289       col[n].rgbGreen = palent[n].peGreen;
1290       col[n].rgbBlue  = palent[n].peBlue;
1291       col[n].rgbReserved = 0;
1292     }
1293     This->get_dc(This, &dc);
1294     SetDIBColorTable(dc, dwStart, dwCount, col);
1295     This->release_dc(This, dc);
1296
1297     /* Propagate change to backbuffers if there are any */
1298     /* Basically this is a modification of the Flip code to find the backbuffer */
1299     /* and duplicate the palette update there as well */
1300     if ((This->surface_desc.ddsCaps.dwCaps&(DDSCAPS_FLIP|DDSCAPS_FRONTBUFFER))
1301         == (DDSCAPS_FLIP|DDSCAPS_FRONTBUFFER))
1302     {
1303         static DDSCAPS2 back_caps = { DDSCAPS_BACKBUFFER };
1304         LPDIRECTDRAWSURFACE7 tgt;
1305
1306         HRESULT hr = IDirectDrawSurface7_GetAttachedSurface(ICOM_INTERFACE(This,IDirectDrawSurface7),
1307                                                             &back_caps, &tgt);
1308         if (!FAILED(hr))
1309         {
1310             IDirectDrawSurfaceImpl* target = ICOM_OBJECT(IDirectDrawSurfaceImpl,
1311                                                          IDirectDrawSurface7,tgt);
1312             IDirectDrawSurface7_Release(tgt);
1313             target->get_dc(target, &dc);
1314             SetDIBColorTable(dc, dwStart, dwCount, col);
1315             target->release_dc(target, dc);
1316         }
1317     }
1318 }
1319
1320 /* SetPalette: generic */
1321 /* SetPriority: generic */
1322 /* SetPrivateData: generic */
1323
1324 HRESULT WINAPI
1325 DIB_DirectDrawSurface_SetSurfaceDesc(LPDIRECTDRAWSURFACE7 iface,
1326                                      LPDDSURFACEDESC2 pDDSD, DWORD dwFlags)
1327 {
1328     IDirectDrawSurfaceImpl *This = (IDirectDrawSurfaceImpl *)iface;
1329     DIB_PRIV_VAR(priv, This);
1330     HRESULT hr = DD_OK;
1331     DWORD flags = pDDSD->dwFlags;
1332
1333     if (TRACE_ON(ddraw)) {
1334         TRACE("(%p)->(%p,%08lx)\n",iface,pDDSD,dwFlags);
1335         DDRAW_dump_surface_desc(pDDSD);
1336     }
1337
1338     if (pDDSD->dwFlags & DDSD_PIXELFORMAT) {
1339         flags &= ~DDSD_PIXELFORMAT;
1340         if (flags & DDSD_LPSURFACE) {
1341             This->surface_desc.u4.ddpfPixelFormat = pDDSD->u4.ddpfPixelFormat;
1342         } else {
1343             FIXME("Change of pixel format without surface re-allocation is not supported !\n");
1344         }
1345     }
1346     if (pDDSD->dwFlags & DDSD_LPSURFACE) {
1347         HBITMAP oldbmp = priv->dib.DIBsection;
1348         LPVOID oldsurf = This->surface_desc.lpSurface;
1349         BOOL oldc = priv->dib.client_memory;
1350
1351         flags &= ~DDSD_LPSURFACE;
1352
1353         TRACE("new lpSurface=%p\n",pDDSD->lpSurface);
1354         This->surface_desc.lpSurface = pDDSD->lpSurface;
1355         priv->dib.client_memory = TRUE;
1356
1357         hr = create_dib(This);
1358         if (FAILED(hr))
1359         {
1360             priv->dib.DIBsection = oldbmp;
1361             This->surface_desc.lpSurface = oldsurf;
1362             priv->dib.client_memory = oldc;
1363             return hr;
1364         }
1365
1366         DeleteObject(oldbmp);
1367
1368         if (!oldc)
1369             VirtualFree(oldsurf, 0, MEM_RELEASE);
1370     }
1371     if (flags) {
1372         WARN("Unhandled flags : %08lx\n", flags);
1373     }
1374     return hr;
1375 }
1376
1377 /* Unlock: ???, need callback */
1378 /* UpdateOverlay: generic */
1379 /* UpdateOverlayDisplay: generic */
1380 /* UpdateOverlayZOrder: generic */
1381
1382 static IDirectDrawSurface7Vtbl DIB_IDirectDrawSurface7_VTable =
1383 {
1384     Main_DirectDrawSurface_QueryInterface,
1385     Main_DirectDrawSurface_AddRef,
1386     Main_DirectDrawSurface_Release,
1387     Main_DirectDrawSurface_AddAttachedSurface,
1388     Main_DirectDrawSurface_AddOverlayDirtyRect,
1389     DIB_DirectDrawSurface_Blt,
1390     Main_DirectDrawSurface_BltBatch,
1391     DIB_DirectDrawSurface_BltFast,
1392     Main_DirectDrawSurface_DeleteAttachedSurface,
1393     Main_DirectDrawSurface_EnumAttachedSurfaces,
1394     Main_DirectDrawSurface_EnumOverlayZOrders,
1395     Main_DirectDrawSurface_Flip,
1396     Main_DirectDrawSurface_GetAttachedSurface,
1397     Main_DirectDrawSurface_GetBltStatus,
1398     Main_DirectDrawSurface_GetCaps,
1399     Main_DirectDrawSurface_GetClipper,
1400     Main_DirectDrawSurface_GetColorKey,
1401     Main_DirectDrawSurface_GetDC,
1402     Main_DirectDrawSurface_GetFlipStatus,
1403     Main_DirectDrawSurface_GetOverlayPosition,
1404     Main_DirectDrawSurface_GetPalette,
1405     Main_DirectDrawSurface_GetPixelFormat,
1406     Main_DirectDrawSurface_GetSurfaceDesc,
1407     Main_DirectDrawSurface_Initialize,
1408     Main_DirectDrawSurface_IsLost,
1409     Main_DirectDrawSurface_Lock,
1410     Main_DirectDrawSurface_ReleaseDC,
1411     DIB_DirectDrawSurface_Restore,
1412     Main_DirectDrawSurface_SetClipper,
1413     Main_DirectDrawSurface_SetColorKey,
1414     Main_DirectDrawSurface_SetOverlayPosition,
1415     Main_DirectDrawSurface_SetPalette,
1416     Main_DirectDrawSurface_Unlock,
1417     Main_DirectDrawSurface_UpdateOverlay,
1418     Main_DirectDrawSurface_UpdateOverlayDisplay,
1419     Main_DirectDrawSurface_UpdateOverlayZOrder,
1420     Main_DirectDrawSurface_GetDDInterface,
1421     Main_DirectDrawSurface_PageLock,
1422     Main_DirectDrawSurface_PageUnlock,
1423     DIB_DirectDrawSurface_SetSurfaceDesc,
1424     Main_DirectDrawSurface_SetPrivateData,
1425     Main_DirectDrawSurface_GetPrivateData,
1426     Main_DirectDrawSurface_FreePrivateData,
1427     Main_DirectDrawSurface_GetUniquenessValue,
1428     Main_DirectDrawSurface_ChangeUniquenessValue,
1429     Main_DirectDrawSurface_SetPriority,
1430     Main_DirectDrawSurface_GetPriority,
1431     Main_DirectDrawSurface_SetLOD,
1432     Main_DirectDrawSurface_GetLOD
1433 };